Valve



J. A. MACKlE AND F. W. WADDELL.

VALVE.

APPLICATION man MAY 2o. |921.

1 ,436,768. Patnted Nov. 28, 1922..

PQM

-Y State of.

PatentedNov. 1922.

' UNITED sin'iss PAT-ENT orrics.

JOHN A. MACKIE, QF MGKEES EOGKS. AND FREDERICK W. WADDELL, 0F GRAFTON iBOROUGH, PENNSYLVANIA.

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To all whom it may concern:

Be it known that we, JOHN A. Mnm end Fnruciuon W. Wennen., a subject 'ofthe King of Great Britain, and e citizen of the United States,respectively, and residents of Mfr-,Kees Rocks., in the county ofAllegheny and Stute of. Pennsylvania, und Crofton Borough in the countyof Alle heny and lennsylvamin, respective y have invented certain new nnd useful improvements in Valves, of which the following is aspeciiieetion.

This invention relates t0 valves, and more particularly to high pressurevalves, und has y for its principal object the provision of., unimproved vulve otlns clues tlint will lie devoid of leather cups1puckings, etc., and onehnt mcy be readily repaired end reson providedwith inlet and outlet p ortslt and 1Q, respecticely, in the lowersection and with s return port 1'6 in the upper section.

The upper section of the valve casin e has its lower f ace provided witha recess 1 for the reception of a removable valve sert iuemher which iscom osed of ri body por. tion 18 adapted to' t snugly within tle recess17 in the portion 2 ands. reduced portionv19udepted to fit within the'valve et elinniiiber A. in the lower section 3 of the. ons The section 3of the easing is also provided with e recess in aligiunent with therecess 17 iu tliesection 2 undY the ortion 18 of the vulve sent inemberexten this 20.

Suitable wn'shers o1' gaskets 2l and '22 erle located within therespective recesses 17 and 20 to position the valve seat member." The.finto 'zo gaskets 21 eud22 serve to position the 'valve 75 seatmemberwith 'respect to the valve. und it willbe'rendily apparent that by veryi'the thickness of the gaskets the position o thevnlve seat member-may bevaried with respect to the vulve to care for wear or re B0 Referring tothe accompanying drawings, in which o referred forni of our vulve xsillustrated gure 1 is n vertical sectional elevation through the vslveFigure 2 is e top lan view.

Figure 3 is n'bot om plnn view. e

Fi 4 is o cross section 'on the line duction in size 'of the sent due togrinding IV- of Figure 1. yor resenting. y i

Referrin now more particularly to the The lower end of the reduced rtion19' drawings,i e vulve easing' is coin osed of of the valve seat memberis bevele inwardly forming u sent 28. 85

upper and lower cylindrical centra y upertui-ed sections 2 und 3,respectively, secured together by stub screws 4 threaded into the lowersection and -heving nuts 5 on their Vss threaded n 'be screwed upperends bearing ugninst the uppersec-- tion, the-'lower section havin ucentrally arranged aperture of ler rer iexneter thun the section 2 toforni a va ve cluunber A.

- The iaper'seoton 2 of' the vulve body is p provide with un integralextension or neck 6 having e centrally formednperture or opening thereinthrough which the valve stem 'i' i se. The aperture inthe neolf'i isproviged with n screw thread udnwent its lower end to receive theoperutin? ihreu a n, po n of the vulve stem und is contracte Aabove thethread 8 to form a guide rin 1 0.

oep'tion'of e. gland-13, which is adapted 'to The particular valveshown'in the dra-ivings is a three-wey valve `und therefore` is tively,to position the sect member with r edown ngainst'the pecking rings p Thelower section 3 of the valve easing' isprovidecl with -ii recess 2,4adapted to'rereive u valve sent ineluberumd is closed' by u rap orbottom plete 25 having n proection 26 fitting snugly within the recessand .s1-.euml to the section 3 by stub screws 27, which are threadedinto the section 3 end have nuts 28 on their outer en ds hearingagonie-it the plate 25.

The vulve seat member edit )ted tolit within the recess 24 is compose ofa body portion 29 adopted to fit snugly `within the recess 24 and ureduced portion 80 adapted to lit within the vulve chimiber A. 4Suitablewashers 'or gaskets 31 und 32 nre located within the recess 9A betweenthe seat member andthe bottom of the recess 24 andthe top ofthe sentmember und the fece of the projection 26 ou the member 25, respecspeetto the vulve, end it will be readily v. arent that ns se't forth abovewhen desori mg the functions of'the washers or gaskets 21 and 22, byvarying the thickness of the washers or gaskets 31 and 32 the positionof 110 vet i the seat member may be varied with respect l to thevalve.

i 38,10 snugly engage the said bottom portion 30 of the seat member Thereduced forming-a. valve seat 34.

is beveled inward! The valve stem t ral shoulder at its lower endforming a vve which has its lower face beveled at 36 to snugly fit thevalve seat 34. A second inf tegrai shoulder 37 forming a valve is spacedupwardly along the valve stem from the valve 35 and has its upper facebeveled at valve seat 23. The valves 35 and 37 are of less diameter thanthel valve chamber, end spacer lugs or spiders 39 are providedi betweenthe valves to prevent knocking or chattering of the vali'e stem duringuse.

The upper end of the valve stemV is provided with a squared portion 40to receive a hand wheel, operating lever or the like.

The advantages of our improved valve` will be readilyr aplpreciated bythose skilledV in the art, artcu ar attention bei directed tothefollowing: Thevalve seats may be readily removed for rinding orre-seating, and the position of t eseats relative to the valves mayrendllybe varied by substituting gaslmtsV of "crying thickness toposition the valve seats, therefore permitting the stroke of the valveto remain the same after reseating.

Ve claim z- A 1 1. A vulve comprising.,Ir a casing having recessessurrounding the passage therein.l o posing valve seats removably mountedin said recesses, -sa-id valve casin r bein'lr divided transverselyth'rou h one o? sai recesses forming upper an lower sections and thelother of said recesses openmgthrough thel bottom of said lower sectionand being closed by a bottom plate, said casing sections and lplatebeing removabl secured together, Yan a vertically mova )le valveintegrally formed is provided with an ined to c'o-operate with saidvalve means for positioning said valve tive to said valve faces.

stem mounted in said casing and having opposing valve faces thereonadapted to zzo-operate with said valve seats.

-2. A valve VVcomprising' recesses surrounding the passage therein,

posing valve, seats removably mounted a. casing having said recesses',said valve casing being divided -50 transversely throu h one saidrecesses forming upper an "lower sections and the other of said recesseso bottom of said lower section and being closed by a' bottomA plate,said casing sections and said bottom plate being together, a verticallymolvble Vvalve stem mountedin said casi v' ,integrali formed opposingvaivenoes tllllegreon adapt:-r seats, and seats rela- 3. A valvecomprising a casing having recesses surrounding the passage therein,posingr valve seats removably mounted 1n said recesses, said valve casinbeing divided transversely thron fh one o formingl upper and lowersections and the otherof said recesses opening through the bottom ofsaid lower section and being closed b. a bottom plate, said c asisections an said bottom plete being removably secured together, avertically movable valve stem mountedin said casing havingintegrally'formed opposing valve faces thereon adapted to co-operntewith said valve seats, and removable. skets between the'ends of saidrecesses am said val've seats for Ai tioning said valve seats relativeto said valve faces.` l f 'in testimony whereof we have hereunto signi-dour names.

JOHN A. MACKIE. FREDERICK W. WADDELL removably secured ng' through thesaid recesses

